(1973). Bibliography of publications issued by Unesco or under its auspices: The first twenty-five years. Unesco.
Chicago Style (17th ed.) CitationBibliography of Publications Issued by Unesco or Under Its Auspices: The First Twenty-five Years. Paris: Unesco, 1973.
ציטוט MLABibliography of Publications Issued by Unesco or Under Its Auspices: The First Twenty-five Years. Unesco, 1973.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.